Question for those with HoT + Core legends
Bifrost will be easier to make.
The Gen 2 Legendaries are pretty much a kick in the wallet, with there being very little fun task involved in the creation. Especially steps 2/4.
Bifrost would be much easier. If for no other reason than the fact that having The Legend means you only have to do half as much stuff.
Bifrost will be easier. If you sit down and do like 1 map a day, you’ll get world completion down. You could even up it to 2 if you have a lot of the map done already, or even 3. Don’t try to do it all back to back. Take breaks. Bifrost only needs Core Tyria for it (so no HoT zones, nor Dry Top/SW), and they removed WvW from it.
https://wiki.guildwars2.com/wiki/The_Bifrost
Bifrost does require 500 Arah Tokens, but with the change to dungeons, you can do 8 other paths, or even include some of the Arah paths, and get 150 extra tokens. Or you can do the WvW/PvP tracks, and get some tokens from there. On those paths for WvW/PvP, you’ll get 180 for the whole track. So those are now so much easier to get as well.